Why can't I like both of them?=.=?

Hey guys, please spend a lilttle time to help me going through this

I liked a guy sydney, i am in melb though, we kept in touch and have known eachother in 2 years.We started to go further than friendship. But then he told me he still missed his ex. I decided to leave him alone.

Then one month later, i started to like a guy in my drama class. I am 90% sure that he likes me too. Then the guy in sydney knows, he said he cant lose me because he loves me and stuff, this is the first time we shared feelings with eachother though we 've been very close. I believe him.

But i like both of them. Wat should I do?

The guy in sydney is more than me 2 years old, hard working and responsible, mature but he's a bit serious sometimes, and he changes his idea all the time, except his love=.=, i feel a bit hard to understand him

The guy in drama class is same age with me, funny and intelligent, but i didnt get too much chance to talk to him, idk him that well, moreover, i hv just known him for a short time.

Be with sydney guy, i feel safe, but be with the guy in drama class, i feel fun

I am 15 btw

Plz help!